The normal way to remove a completion for a Bash command (say “mv”) is to do
“complete -r mv”. However, with the bash-completion package installed on
Mageia Linux Cauldron, this is not enough because it also adds a default
completion for every invoked command. So in order to override this behaviour,
type “complete -r -D” and then you can remove the commands’ completions
permanently, using “complete -r mv” or whatever.